空气动力学学报Issue(6)：835-842,8.DOI:10.7638/kqdlxxb-2015.0021
尾缘襟翼长度对风力机翼型气动性能的影响
The effect of trailing edge flaps length on aerodynamics of wind turbine airfoil
摘要
Abstract
The goal of the study was to investigate the effect of trailing edge flaps length on aerodynamics of wind turbine airfoil ,airfoil S809 and DU series airfoil were selected as research objects,and six kinds of flap length airfoil model were designed,have the same chord length of 1 000 mm,and the same deflect angle of 10°,the gap between the flap and the main airfoil body was optimized to make the width of gap as even 1 mm.The grids near the trailing edge are refined,and the grid independence is verified through the comparison of the calculated results with grid scales three,which a 148 000 grid model was selected for further calculation.The k-ωtwo equation turbulence model for commercial software Fluent was used here to calculate the aer-odynamics of the flap models at different attack angles,the streamline,pressure contour and pressure coefficient near border of airfoil were analyzed and compared.The result shows that the flaps length of airfoil with trailing edge flaps has great effect on the aerodynamic performance of the airfoil,not only the streamline near the flap is influenced but also the whole streamline near the airfoil are influenced.The lift coefficient of airfoil with flap is bigger than that of airfoil without flap,and the lift coefficient increases with the increasing of flap length.The drag coefficient of flap model is also bigger than that of airfoil without flap,and the drag coefficient of flap model also increases with the increasing of angle of attack.The lift to drag ratio is bigger than that of airfoil without flap at some range of angles of attack.关键词
风力机翼型/分离式尾缘襟翼/计算流体力学/升阻比Key words
wind turbine airfoil/discrete trailing edge flaps/computational fluid dynamics/lift to drag ratio分类
航空航天引用本文复制引用
韩中合,贾亚雷,李恒凡,朱霄繤,董帅..尾缘襟翼长度对风力机翼型气动性能的影响[J].空气动力学学报,2015,(6):835-842,8.基金项目
国家自然科学基金（11302076）；中央高校基本科研业务专项资金 （）
